No data available.
Please log in to see this content.
You have no subscription access to this content.
No metrics data to plot.
The attempt to load metrics for this article has failed.
The attempt to plot a graph for these metrics has failed.
The full text of this article is not currently available.
Mixed-derivative skewness for high Prandtl and Reynolds numbers in homogeneous isotropic turbulence
G. K. Batchelor, “Small-scale variation of convected quantities like temperature in turbulent fluid. Part 1. General discussion and the case of small conductivity,” J. Fluid Mech. 5, 113–133 (1959).
A. Briard, T. Gomez, P. Sagaut, and S. Memari, “Passive scalar decay laws in isotropic turbulence: Prandtl effects,” J. Fluid Mech. 784, 274–303 (2015).
C. Scalo, U. Piomelli, and L. Boegman, “High-Schmidt-number mass transport mechanisms from a turbulent flow to absorbing sediments,” Phys. Fluids 24, 4178 (2012).
P. K. Yeung, S. Xu, and K. R. Sreenivasan, “Schmidt number effects on turbulent transport with uniform mean scalar gradient,” Phys. Fluids 14, 4178 (2002).
J. Schumacher, K. R. Sreenivasan, and P. K. Yeung, “Schmidt number dependence of derivative moments for quasi-static straining motion,” J. Fluid Mech. 479, 221–230 (2003).
M. S. Borgas, B. L. Sawford, S. Xu, D. A. Donzis, and P. K. Yeung, “High Schmidt number scalars in turbulence: Structure functions and Lagrangian theory,” Phys. Fluids 14, 3888 (2004).
K. A. Buch and W. J. A. Dahm, “Experimental study of the fine-scale structure of conserved scalar mixing in turbulent shear flows. Part 1. Sc ≥ 1,” J. Fluid Mech. 317, 21–71 (1996).
M. Lesieur, Turbulence in Fluids (Springer, New York, 2008).
W. J. T. Bos, L. Chevillard, J. F. Scott, and R. Rubinstein, “Reynolds number effect on the velocity increment skewness in isotropic turbulence,” Phys. Fluids 24, 015108 (2012).
T. Zhou, R. A. Antonia, L. Danaila, and F. Anselmet, “Transport equations for the mean energy and temperature dissipation rates in grid turbulence,” Exp. Fluids 28, 143–151 (2000).
J. R. Ristorcelli, “Passive scalar mixing: Analytic study of time scale ratio, variance, and mix rate,” Phys. Fluids 18, 075101 (2006).
T. Gotoh, D. Fukayama, and T. Nakano, “Velocity field statistics in homogeneous steady turbulence obtained using a high-resolution direct numerical simulation,” Phys. Fluids 14, 1065–1081 (2002).
W. K. George, “Self-preservation of temperature fluctuations in isotropic turbulence,” in Studies in Turbulence, edited by T. B. Gatski, C. G. Speziale, and S. Sarkar (Springer, New York, 1992), pp. 514–528.
Article metrics loading...
The mixed-derivative skewness S
uθ of a passive scalar field in high Reynolds and Prandtl numbers decaying homogeneous isotropic turbulence is studied numerically using eddy-damped quasi-normal Markovian closure, for Re
λ ≥ 103 up to Pr = 105. A convergence of S
uθ for Pr ≥ 103 is observed for any high enough Reynolds number. This asymptotic high Pr regime can be interpreted as a saturation of the mixing properties of the flow at small scales. The decay of the derivative skewnesses from high to low Reynolds numbers and the influence of large scales initial conditions are investigated as well.
Full text loading...
Most read this month